The invention relates to the technical field of operation machinery, and provides a boom telescopic control method, a hydraulic control system and operation machinery. The boom stretching control method comprises the following steps: when the boom needs to stretch out, determining a stretching-out action mode of the boom based on the stretching-out length of the boom. Wherein the extension action mode comprises a priority mode and a synchronization mode; in the priority mode, the oil source preferentially drives the innermost-layer arm oil-saving cylinder to extend out; and in the synchronous mode, the oil source drives the arm oil cylinders of all the layers to stretch out synchronously. By means of the boom stretching control method, the priority mode can be started in the state that the stretching stability of the boom is relatively high, so that the oil source drives the innermost layer of boom oil cylinder to stretch out in a full-force mode, and the stretching response speed of the boom is increased. And when the extension stability of the boom is relatively low, the synchronous mode is started, so that the oil source drives the boom oil cylinders of all layers to extend out simultaneously, and the extension smoothness and stability of the boom are ensured.
本发明涉及作业机械技术领域,提供了一种臂架伸缩控制方法、液压控制系统及作业机械。臂架伸缩控制方法包括以下步骤:在需要伸出臂架时,基于臂架的伸出长度,确定所述臂架的伸出动作模式。其中,所述伸出动作模式包括优先模式和同步模式;在所述优先模式下,油源优先驱动最内层臂节油缸伸出;在所述同步模式下,所述油源驱动各层所述臂节油缸同步伸出。通过这种臂架伸缩控制方法,能够在臂架伸出稳定性相对较高的状态下,启动优先模式,使得油源先全力驱动最内层臂节油缸伸出,提升臂架伸出的响应速度。在臂架伸出稳定性相对较低的状态下,启动同步模式,使得油源同时驱动各层臂节油缸伸出,保证臂架伸出的顺滑程度及稳定性。
Boom stretching and retracting control method, hydraulic control system and operation machine
臂架伸缩控制方法、液压控制系统及作业机械
2024-10-01
Patent
Electronic Resource
Chinese
IPC: | B66C Krane , CRANES / B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last / F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein |
Hydraulic supporting leg stretching and retracting control loop and control method
European Patent Office | 2023
|Stretching and retracting device for recreational vehicle
European Patent Office | 2016
|Tail boom retracting and releasing system with centering mechanism
European Patent Office | 2025
|